Optical fiber has largely replaced copper wire communications in the core networks of the developed world because it is superior to electrical transmission. The following are the main advantages of fiber optic transmission.

Extremely high bandwidth: No other cable-based data transmission medium offers the bandwidth that fiber optics can. The amount of data transmitted by an optical cable per unit time is much larger than that of a copper cable.

Longer distances: In fiber optic transmission, fiber optic cables provide low power loss, which allows signals to travel longer distances than copper cables.

Anti-electromagnetic interference: In actual cable deployment, it is inevitable to encounter interference sources in industrial environments such as substations, heating, and ventilation. However, fiber has a very low bit error rate (10 EXP-13) because fiber is highly resistant to electromagnetic interference. Optical fiber transmission is almost noise-free.